
*{
    margin: 0;
    padding: 0;
    list-style: none;
}

.main{
    width: 500px;
    margin: 0 auto;
    border: 2px solid red;
    background: url(../images/erha1.jpg) center center;
    background-size: 100% 100%;
    height: 500px;
    padding: 20px;
}

.list{
    width: 500px;
    margin: 0 auto;
    border: 2px solid red;
    padding: 20px;
}
.list li{
    border-bottom: 2px solid saddlebrown;
}

.navigator{
    display: flex;
    justify-content: space-around;
}

.detail{
    width: 500px;
    margin: 0 auto;
    border: 2px solid red;
    padding: 20px;
    color: red;
}